need to find age of free standing furnace

hi i have a free standing furnace in my house with a tag at the bottom yhat says johnsons warm air heater my house is 90 years old i am wondering how old this heater is it is a nt gas heater

Rest assured with you providing no info you can guess as I would that it is not 90 years in age:shock::shock:


Go to and submit a photo of the unit along with a good readible photo of the data plate and i will try to help you.

John b.